Peer reviewers' willingness to review, their recommendations and quality of reviews after the Finnish Medical Journal switched from single-blind to double-blind peer review. - Parmanne, Piitu; Laajava, Joonas; Järvinen, Noora; Harju, Terttu; Marttunen, Mauri; Saloheimo, Pertti (Research Integrity & Peer Review, 2023)